AXT, Inc. (NASDAQ:AXTI), a leading manufacturer of compound semiconductor substrates, today announced that it will participate in the upcoming financial conferences:

Needham 7^th Annual Virtual Semiconductor & SemiCap 1x1 Conference on Aug. 20^th
9^th Annual B. Riley Securities Consumer & TMT Conference on Sept. 10^th in New York
Morgan Stanley ASIA Best Corporate Day on Sept. 21^st-22^nd in New York

About AXT, Inc.

AXT is a material science company that develops and manufactures high-performance compound and single element semiconductor substrate wafers comprising indium phosphide (InP), gallium arsenide (GaAs) and germanium (Ge). The company’s substrate wafers are used when a typical silicon substrate wafer cannot meet the performance requirements of a semiconductor or optoelectronic device. End markets include 5G infrastructure, data center connectivity, passive optical networks, LED lighting, lasers, sensors, power amplifiers for wireless devices and satellite solar cells. AXT’s worldwide headquarters are in Fremont, California where the company maintains sales, administration and customer service functions. AXT has its Asia headquarters in Beijing, China and manufacturing facilities in three separate locations in China. In addition, as part of its supply chain strategy, the company has partial ownership in ten companies in China producing raw materials for its manufacturing process. For more information, see AXT’s website at https://investors.axt.com.

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Gary L. Fischer

Chief Financial Officer

gfischer@axt.com

Leslie Green

Green Communications Consulting, LLC

leslie@greencommunicationsllc.com